For Contact With Ionizing Electrode Or Uniform Flow In Treating Zone Patents (Class 96/62)
  • Patent number: 11806727
    Abstract: The present invention relates to a window-type dust collecting apparatus for effectively shielding inflow of fine dust according to external environmental factors on the basis of artificial intelligence. The window-type dust collecting apparatus according to the present invention adjusts the intensity of electric power applied to a dust collector according to the wind speed or the fine dust concentration measured by a sensor so as to optimize the electric power required for shielding the fine dust.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: November 7, 2023
    Assignee: LG ELECTRONICS INC.
    Inventors: Tae Hoon Cho, Sang Hyuck Lee
  • Patent number: 10994283
    Abstract: An electronic dust collecting apparatus is provided. The electronic dust collecting apparatus includes a charger, and a dust collector installed downstream of the charger, wherein the dust collector includes a dust collecting sheet including a plurality of first and second electrodes that are alternately arranged therein and a plurality of bent portions that are bent in a zigzag form in such a way that the plurality of first electrodes and the plurality of second electrode face each other.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: May 4, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyong-soo Noh, Yasuhiko Kochiyama, Hye-Won Gil
  • Patent number: 9897528
    Abstract: A particulate detection system (1) for detecting the quantity of particulates S in a gas under measurement EG includes first heater energization means S2 to S3, current convergence determination means S4 to S5, S7 to S8, second heater energization means S6, and detection start means S10. S2 to S3 performs low-temperature energization of heater (78) for a predetermined period after operation of ion source (11) is started by ion source drive circuit (210) such that gaseous discharge current Id becomes equal to a predetermined target current It. S4 to S5, S7 to S8 determines, after elapse of the predetermined period, whether or not Id has converged to an allowable range IR. When S4 to S5 determines that Id has not yet converged, S6 performs high-temperature energization of the heater (78) until Id converges. Then, S10 starts detection of particulates S using signal Is detected by a detection circuit (230).
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: February 20, 2018
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Masayuki Motomura, Takeshi Sugiyama, Kazunari Kokubo
  • Patent number: 9272291
    Abstract: A device includes a chamber having an air inlet and an air outlet. The device includes a plurality of stages including at least a first stage adjacent a second stage. The plurality of stages are disposed in the chamber and each stage has a plurality of discharge electrodes disposed in an interior region and is bounded by an upstream baffle on an end proximate the air inlet and bounded by a downstream baffle on an end proximate the air outlet. Each stage has at least one sidewall between the upstream baffle and the downstream baffle. The sidewall is configured as a collection electrode and has a plurality of apertures disposed along a length between the upstream baffle and the downstream baffle. The upstream baffle of the first stage is positioned in staggered alignment relative to the upstream baffle of the second stage and the downstream baffle of the first stage are positioned in staggered alignment relative to the downstream baffle of the second stage.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: March 1, 2016
    Assignee: Energy & Environmental Research Center Foundation
    Inventors: Stanley J. Miller, Jay C. Almlie, Ye Zhuang
  • Patent number: 8961659
    Abstract: An electrically enhanced air filtration system is disclosed which uses rear fiber charging is disclosed. In particular, a fibrous filter may be placed in an upstream position within the system with one or more ionization arrays positioned downstream or to the rear of the fibrous filter in terms of airflow direction. The fibrous filter may include a grounded side and fiber side with the grounded side being upstream of the fiber side. The ionization array may include a plurality of electrodes each extending unidirectionally toward the fibrous filter.
    Type: Grant
    Filed: October 20, 2009
    Date of Patent: February 24, 2015
    Assignee: Carrier Corporation
    Inventor: Peter J. McKinney
  • Patent number: 8945288
    Abstract: A device for separating overspray from the cabin exhaust air of painting systems includes at least one separating surface, on which the exhaust air is guided and which is connected to a pole of a high voltage source. An electrode device arranged in the air stream is associated with the separating surface and connected to the other pole of the high voltage source. The separated paint overspray is transported away from the separating surface with a separating fluid, which flows over the separating surface-from top to bottom. A discharge device having a channel open at the top is present, from which the separating fluid exits along the longitudinal extension of the discharge device when the level of the separating fluid in the channel exceeds an exit level, and reaches the separating surface such that the separating fluid flows downward on the separating surface as a substantially adhering layer.
    Type: Grant
    Filed: August 13, 2009
    Date of Patent: February 3, 2015
    Assignee: Eisenmann AG
    Inventors: Werner Swoboda, Erwin Hihn, Kersten Link, Gert Eberhard Kocher
  • Publication number: 20140366736
    Abstract: A device for treating a gas stream, especially an exhaust-gas stream of an internal combustion engine, includes at least one radial chamber radially conducting the gas stream and extending substantially radially from a central region to an outer collecting chamber. First and second, preferably parallel, substantially disk-shaped walls delimit the chamber. Electrodes project from the first wall into the chamber. The first wall is formed of electrically insulating material having the electrodes fastened therein and electrically interconnected by electrical conductors in or on the insulating material. Two or more chambers may be disposed, axially in series, around the central region. Very effective treatment of exhaust gas with an electric field for ionization or generating a plasma can be provided over a relatively short structural length in a flow direction. Electric fields running transversely to the flow direction provide new possibilities for selecting various parameters of the treatment device.
    Type: Application
    Filed: September 2, 2014
    Publication date: December 18, 2014
    Inventors: PETER HIRTH, JAN HODGSON, CHRISTIAN VORSMANN
  • Patent number: 8608838
    Abstract: The invention provides an air purification system in form of tubing, by which particulates of various sizes in the air flow can be collected. The system includes an air inlet, an air outlet and a particulate removing unit located therebetween, the particulate removing unit including a tubing array of material having low dielectric constant, when an air flow passes through the system electrostatic effect is created between the air flow and the tubing material so as to remove the particulates entrained within the air flow. The invention also provides a method for removing particulates from air flow using the electrostatic effect created between the air flow and said material.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: December 17, 2013
    Assignee: Yau Lee Innovative Technology, Ltd.
    Inventors: Tin Cheung Wong, Yee Tak Leung
  • Patent number: 8574353
    Abstract: An object of the present invention is to provide an electric dust collector with its dust collecting performance being improved for collecting dust-like particles contained in a gas, whereas the increase in size thereof is being suppressed. An electric dust collector distributes a gas that has flown into a distribution chamber to a plurality of charging flow paths in a casing thereof, causes the distributed gas to flow from the insides of the charging flow paths into internal flow paths through mesh filters that are formed as parts of the dust collecting electrodes and that have a large surface areas per unit volume. Then, the gas is discharged to a central chamber through internal outlets. Subsequently, the flow of the gas is controlled to be discharged to the outside through a gas outlet.
    Type: Grant
    Filed: November 11, 2009
    Date of Patent: November 5, 2013
    Assignee: Furukawa Industrial Machinery Systems Co., Ltd.
    Inventors: Taksuki Nazuka, Kazuhiro Suginami
  • Publication number: 20130216440
    Abstract: A device for treating exhaust gas containing soot particles includes at least one ionization element for ionizing soot particles, at least one filter element having at least one section to which an electrical potential can be applied, and at least one flow-directing device. The flow-directing device can influence a flow of the exhaust gases in such a way that the soot particles can be prevented from being deposited on at least one electric insulation of the ionization element or of the filter element or can be removed therefrom. Soot particles are therefore effectively prevented from being deposited on electric insulation of exhaust gas cleaning components, thereby preventing short-circuits from being produced and permitting exhaust gas systems to be safely operated.
    Type: Application
    Filed: September 13, 2011
    Publication date: August 22, 2013
    Applicant: EMITEC GESELLSCHAFT FUER EMISSIONSTECHNOLOGIE MBH
    Inventors: Rolf Brueck, Jan Hodgson, Christian Vorsmann
  • Patent number: 8500873
    Abstract: A waste-gas cleaning system for cleaning aerosol-laden gases or atmospheres includes an inlet configured to intake raw gas, an outlet configured to discharge clean gas and at least one assembly including an ionization section and a downstream central collection section disposed centrally with respect to a channel axis. The ionization section includes at least one level at a right angle to the channel axis. The at least one assembly includes at least two substantially identical ionization stages disposed in a plane and arranged uniformly about the channel axis and configured to conduct a gas flow radially, with respect to the channel axis, inward therethrough into the downstream central collection section so as to be similarly diverted such that a flow profile over an inside cross section in the downstream central collection section is not inclined with respect to the channel axis in the course of the gas flow.
    Type: Grant
    Filed: August 20, 2008
    Date of Patent: August 6, 2013
    Assignee: Karlsruher Institut fuer Technologie
    Inventors: Hanns-Rudolf Paur, Andrei Bologa, Klaus Woletz
  • Patent number: 8492733
    Abstract: A multi-sectional linear ionizing bar with at least four elements is disclosed. First, disclosed bars may include at least one ionization cell with at least one axis-defining linear ion emitter for establishing an ion cloud along the length thereof. Second, disclosed bars may include at least one reference electrode. Third, disclosed bars may include a manifold for receiving gas or air from a source and for delivering same past the linear emitter(s) such that substantially none of the gas/air flows into the ion cloud. Fourth, disclosed bars may include means for receiving the ionizing voltage and for delivering same to the linear emitter(s) to thereby establish the ion cloud. In this way, disclosed ionizing bars may transportions from the plasma region toward a charge neutralization target without inducing substantial vibration of the linear emitter and without substantial contaminants from the gas/air flow reaching the linear emitter.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: July 23, 2013
    Assignee: Illinois Tool Works Inc.
    Inventors: Aleksey Klochkov, Peter Gefter, Steven Bernard Heymann, Leslie W. Partridge, Greenberry Bedford Brown, Matthew T. Antonelli
  • Patent number: 8273161
    Abstract: An air vent air purifier includes a grill portion and a housing that is attached to the bottom of the grill portion. The housing fits within a forced air vent. The housing encloses an ionization grid, control circuitry and energy source. When energized, air flowing through the vent from the air handling device passes through the ionization grid, where it is ionized, thereby cleaning the air throughout the entire room. The grill may include a decorative element to match the décor of a room. Batteries provide the energy. A series of indicator lights indicate a power on condition and the level of the battery.
    Type: Grant
    Filed: November 28, 2008
    Date of Patent: September 25, 2012
    Inventor: Shaam P Sundhar
  • Patent number: 8043413
    Abstract: An embodiment of the present invention provides a system for removing foreign objects from the airstream entering an inlet system of a turbomachine. The system may include an electrostatic system that may be configured to charge conductive, or partially conductive foreign objects that are in the airstream flowing through the system. This system may create an electric field to draw the charged foreign objects, allowing for a collecting section to remove the charged foreign objects from the airstream. An embodiment of the present invention may provide an automatic accumulation system for collecting the foreign objects removed from the airstream. An embodiment of the present invention may provide an automatic cleaning system for cleaning components of the collecting system.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: October 25, 2011
    Assignee: General Electric Company
    Inventors: Rahul J. Chillar, Stephen D. Hiner, Aaron M. Smith
  • Publication number: 20110209620
    Abstract: An object of the present invention is to provide an electric dust collector with its dust collecting performance being improved for collecting dust-like particles contained in a gas, whereas the increase in size thereof is being suppressed. An electric dust collector 10 distributes a gas G that has flown into a distribution chamber 90 to a plurality of charging flow paths 58 in a casing 12 thereof, causes the distributed gas to flow from insides of the charging flow paths 58 into internal flow paths 28 through mesh filters 30 that are formed as parts of the dust collecting electrodes 16 and that have large surface areas per unit volume. Then, the gas G is discharged to a central chamber 33 through internal outlets 32. Subsequently, the flow of the gas G is controlled to be discharged to the outside through a gas outlet 24.
    Type: Application
    Filed: November 11, 2009
    Publication date: September 1, 2011
    Applicants: FURUKAWA INDUSTRIAL MACHINERY SYSTEMS CO., LTD., TAIHEIYO ENGINEERING CORPORATION
    Inventors: Taksuki Nazuka, Kazuhiro Suginami
  • Publication number: 20110203459
    Abstract: A device for separating paint overspray from the cabin exhaust air of painting systems which is laden with overspray comprises at least one separating surface, on which the cabin exhaust air can be guided along and which is connected to a pole of a high voltage source. An electrode device arranged in the air stream is associated with the separating surface and connected to the other pole of the high voltage source. The separated paint overspray is transported away from the separating surface with a separating fluid, which flows over the separating surface from top to bottom. A discharge device having a channel open at the top is present, from which said fed separating fluid exits along the longitudinal extension of said discharge device when the level of the separating fluid in the channel exceeds an exit level, and reaches the separating surface such that the separating fluid flows downward on the separating surface as a substantially adhering layer.
    Type: Application
    Filed: August 13, 2009
    Publication date: August 25, 2011
    Applicant: EISENMANN AG
    Inventors: Werner Swoboda, Erwin Hihn, Kersten Link, Gert Eberhard Kocher
  • Patent number: 8002876
    Abstract: The invention relates to an electrostatic filter method and electrostatic filter for separating particles from industrial waste gases, wherein an optimal electric charging or ionization in the ionization zone are performed in a high-voltage zone and its unchanged ducts with one high-voltage supply source to ensure the subsequent particle separation in the separation zone at sufficient field strength which requires minimal energy input.
    Type: Grant
    Filed: January 9, 2006
    Date of Patent: August 23, 2011
    Assignee: Balcke-Durr GmbH
    Inventors: Werner Jakob Frank, Helga Frank, legal representative
  • Patent number: 7959717
    Abstract: An air conditioning system with an electrostatically atomizing function includes an electrostatically atomizing unit and a ventilation duct which flows conditioned air. The electrostatically atomizing unit generates a mist of charged minute water particles. The electrostatically atomizing unit is provided with a discharge port which locates adjacent to an air outlet of the ventilation duct. The mist of the charged minute water particles flows into an airflow which is sent from the ventilation duct. The mist of the charged minute water particles effectively spreads to the space by the air flow without dissipating inside the ventilation duct.
    Type: Grant
    Filed: December 11, 2006
    Date of Patent: June 14, 2011
    Assignee: Panasonic Electric Works Co., Ltd.
    Inventors: Takeshi Yano, Toshihisa Hirai, Kishiko Hirai, legal representative, Sumio Wada, Akihide Sugawa, Tatsuhiko Matsumoto, Shousuke Akisada
  • Publication number: 20110126712
    Abstract: Clean corona ionization bars separate contaminant byproducts from corona generated ions by establishing a non-ionized gas stream having a pressure and directed toward an attractive non-ionizing electric field of a charge neutralization target, by establishing a plasma region of ions and contaminant byproducts in which the pressure is sufficiently lower than the pressure of the non-ionized gas stream to prevent byproducts from migrating into the non-ionized gas stream. The ionization bar(s) may be located sufficiently close to the charged neutralization target that a non-ionizing electric field of the target induces at least a substantial portion of the ions to migrate into the non-ionized gas stream and to the neutralization target as a clean ionized gas stream.
    Type: Application
    Filed: February 4, 2011
    Publication date: June 2, 2011
    Inventor: Peter GEFTER
  • Patent number: 7901489
    Abstract: This invention relates to an electrostatic precipitator suitable for removing industrial dust particles. This electrostatic precipitator with high efficiency includes a casing, in which the corona discharge electrode lines and the dust-collecting electrode plates, which form a plurality of sedimentation passages, are arranged in parallel and alternately. The vibration apparatuses for cleaning dust are placed respectively on the corona discharge electrode lines and the dust-collecting electrode plates. The wind shields are arranged alternately at both ends of each two adjacent sedimentation passages to form a plurality of air intake sedimentation passages and air exhaust sedimentation passages which are arranged alternately. The passages, where the wind shields are located on the side of air outlet are the air intake sedimentation passages and the air exhaust sedimentation passages with the wind shields located on the side of air inlet.
    Type: Grant
    Filed: August 9, 2006
    Date of Patent: March 8, 2011
    Assignee: Environmental Research Institute
    Inventors: Lieshui Jin, Ye Yuan
  • Publication number: 20110030560
    Abstract: A convertible air cleaner adapted for use in a tower or non-tower orientation including: a housing defining an interior chamber; an air filter disposed in the interior chamber; an air inlet through a first outer face of the housing; and an air outlet through a second face of the housing is described. In the air cleaner, the air inlet is disposed substantially opposite the air outlet, and the air cleaner is adapted to create an airflow between the air inlet and the air outlet when the air cleaner is in a tower or a non-tower orientation.
    Type: Application
    Filed: August 4, 2009
    Publication date: February 10, 2011
    Inventors: John R. Bohlen, Michael R. Amburgey
  • Publication number: 20110023718
    Abstract: Purification method and apparatus for purifying a gas stream by oxygen removal. The apparatus includes primary and secondary oxygen separation zones and tubular electrically driven oxygen separation elements. There are more elements in the primary zone than the secondary zone so that low concentrations of oxygen can be obtained in a purified stream and turbulent flow conditions can also be obtained that will permit purification to very low levels. In addition, a junction is provided to connect the tubular separation elements to metallic elements such as manifolds.
    Type: Application
    Filed: October 8, 2010
    Publication date: February 3, 2011
    Inventors: Jonathan Andrew Lane, David M. Reed
  • Publication number: 20110000375
    Abstract: A waste-gas cleaning system for cleaning aerosol-laden gases or atmospheres includes an inlet configured to intake raw gas, an outlet configured to discharge clean gas and at least one assembly including an ionization section and a downstream central collection section disposed centrally with respect to a channel axis. The ionization section includes at least one level at a right angle to the channel axis. The at least one assembly includes at least two substantially identical ionization stages disposed in a plane and arranged uniformly about the channel axis and configured to conduct a gas flow radially, with respect to the channel axis, inward therethrough into the downstream central collection section so as to be similarly diverted such that a flow profile over an inside cross section in the downstream central collection section is not inclined with respect to the channel axis in the course of the gas flow.
    Type: Application
    Filed: August 20, 2008
    Publication date: January 6, 2011
    Applicant: Karlsruher Institut fuer Technologie
    Inventors: Hanns-Rudolf Paur, Andrei Bologa, Klaus Woletz
  • Patent number: 7846241
    Abstract: A particulate matter detecting apparatus (100) includes a detecting apparatus main body having a cavity (2) that is formed through the detecting apparatus main body, a particle charging section (3) that can charge particulate matter that has entered the cavity through an inflow-side end (6) of the cavity, a collection section (4) that can collect the particulate matter charged by the particle charging section (3) and measure the amount of the particulate matter, and an ion wind generation section (5) that allows the particulate matter charged by the particle charging section (3) to flow toward an outflow-side end (7) of the cavity, the particle charging section, the collection section (4), and the ion wind generation section (5) being provided inside the cavity in this order from the inflow-side end (6). The particulate matter detecting apparatus has a reduced size, shows only a small measurement error, and can be produced inexpensively.
    Type: Grant
    Filed: August 18, 2009
    Date of Patent: December 7, 2010
    Assignee: NGK Insulators, Ltd.
    Inventors: Atsuo Kondou, Takeshi Sakuma, Yasumasa Fujioka
  • Patent number: 7846227
    Abstract: A vehicle-mounted air purifier 1 includes a main unit incorporating an ion generator. The main unit is removably arranged within a passenger space inside a vehicle. For example, if a beverage container holder 90 is provided inside the vehicle, the main unit can be removably arranged within the passenger space when given a cylindrical shape that permits it to be held in the beverage container 90. The power from which the vehicle-mounted air purifier 1 operates can be taken from a cigarette lighter power outlet 91 provided inside the vehicle through a connection cable 92. The main unit is thus arranged directly within the passenger space, and the ions generated by the ion generator inside are fed into the passenger space with higher efficiency. The main unit is removably arranged as an independent unit. Thus, even when the ion generator breaks down or otherwise its replacement becomes necessary, the arranged ion generator can be removed readily and replaced easily.
    Type: Grant
    Filed: September 16, 2004
    Date of Patent: December 7, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hidetoshi Gotoh, Yoshiko Gotoh, legal representative, Yasunori Gotoh, legal representative, Toshiyuki Gotoh, legal representative, Akira Yamamoto
  • Patent number: 7833324
    Abstract: A wet electrostatic precipitator is disclosed to include a condensation-growth chamber, a precipitation chamber connecting with the condensation-growth chamber, three dual-sleeve members mounted in the precipitation chamber, three discharge electrodes connecting with the dual-sleeve members, two insulating members covering on the inner surface of the precipitation chamber, and two ground electrodes mounted on the outside of the precipitation chamber. Thus, a uniform water film is formed on the surface of the insulating members to wash away the particles from waste gas. The condensation-growth chamber is provided for the particles to grow therein and thereby enhances the collection efficiency. The insulating member acts as a shield between the discharge electrodes and the ground electrodes and thereby avoids a short circuit or sparks.
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: November 16, 2010
    Assignee: Industrial Technology Research Institute
    Inventors: Tzu-Mimg Chen, Shou-Nan Li, Chuen-Jinn Tsai, Sheng-Jen Yu, Guan-Yu Lin
  • Patent number: 7819945
    Abstract: A method for making a metal fluoride trap including: assembling a precipitation tube assembly including a plurality of precipitation tubes supported between a first tube end support and a second tube end support; assembling a precipitation tube, flowsheet and filter media assembly including: wrapping a flowsheet around at least one full circumference of the plurality of precipitation tubes, wherein the flowsheet has a width less than a length of the plurality of precipitation tubes between the first tube end support and the second tube end support; and wrapping a filter media around the wrapped flowsheet, wherein the filter media and the flowsheet are wrapped so as to have a diameter less than an inner diameter of an outer casing of the metal fluoride trap; inserting the precipitation tube, flowsheet and filter media assembly into the outer casing of the metal fluoride trap; allowing the flowsheet to expand; and pressing the filter media between the flowsheet and an inner surface of the outer casing of the me
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: October 26, 2010
    Assignee: Cymer, Inc.
    Inventors: Richard Morton, Yoshiho Amada
  • Publication number: 20100162894
    Abstract: An electro-kinetic air mover for creating an airflow using no moving parts. The electro-kinetic air mover includes an ion generator that has an electrode assembly including a first array of emitter electrodes, a second array of collector electrodes, and a high voltage generator. Preferably, a third or leading or focus electrode is located upstream of the first array of emitter electrodes, and/or a trailing electrode is located downstream of the second array of collector electrodes. The device can also include an interstitial electrode located between collector electrodes, an enhanced collector electrode with an integrally formed trailing end, and an enhanced emitter electrode with an enhanced length in order to increase emissivity.
    Type: Application
    Filed: March 12, 2010
    Publication date: July 1, 2010
    Applicant: TESSERA, INC.
    Inventors: Charles E. Taylor, Jim L. Lee
  • Publication number: 20100132561
    Abstract: The present invention describes directly using particles collected with an electrostatic precipitator for the detection of explosives and other compounds of interest. The method and apparatus of analyzing particles involves directly measuring particles on the collection electrodes or thermally desorbing them into an ion mobility spectrometer and/or other analytical instruments. One aspect of the present invention is a particulate charging method. Another aspect of the present invention provides a means of high charging of the particulates while minimizing their collection in the charging stage. The present invention also provides a means for efficiently collecting the particulates in a second stage for sampling in a compact electrode.
    Type: Application
    Filed: February 1, 2010
    Publication date: June 3, 2010
    Applicant: Excellims Corporation
    Inventors: Leslie Bromberg, Ching Wu, Mark A. Osgood
  • Publication number: 20100126343
    Abstract: An electrically enhanced air filter apparatus for filtering particles from moving air is described. The apparatus includes a filter arranged so particles approach the filter a filter speed and pass through an ionizer at an ionizer speed, and is configured so the filter speed is less than the ionizer speed. The ionizer is arranged to guide the moving air in an ionizer airflow direction and generates an ionizing electric field having ionizer field direction substantially perpendicular to the ionizer airflow direction.
    Type: Application
    Filed: November 25, 2008
    Publication date: May 27, 2010
    Applicant: DELPHI TECHNOLOGIES, INC.
    Inventors: Donald John Enzinna, Ilya Reyzin
  • Publication number: 20100011959
    Abstract: The invention relates to an electrostatic particle filter for removing particles from air. The electrostatic particle filter comprises a filter medium (3) with first and second opposite sides, a first electrode (1) and a second electrode (2), the first electrode (1) and second electrode (2) being conformally provided on the first and second sides of the filter medium (3), respectively. The first electrode (1), the second electrode (2), and the filter medium (3) are arranged to allow an electrical conduction current through the filter medium (3). The first electrode (1) is a moderately-conductive electrode having a sheet resistance in a in a range with a lower boundary value of about 106 Ohm per square and an upper boundary value of about 1012 Ohm per square, at a relative humidity of 30%. The invention also relates to an electrostatic filtration system comprising the electrostatic particle filter, and a particle charging section (6).
    Type: Application
    Filed: July 9, 2007
    Publication date: January 21, 2010
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventor: Johan Marra
  • Patent number: 7625435
    Abstract: An air/oil separator for use in a gas turbine engine includes a labyrinth path having an air/oil inlet, air outlet and oil outlet, a device for creating an electrical field within the labyrinth path and a device for creating a suction action at the oil outlet to draw liquid oil from the labyrinth path and for delivering the liquid oil under pressure to a pressurized source of oil in the engine.
    Type: Grant
    Filed: September 22, 2006
    Date of Patent: December 1, 2009
    Assignee: Pratt & Whitney Canada Corp.
    Inventor: Kevin Allan Dooley
  • Patent number: 7621984
    Abstract: The disclosed electrostatic precipitator cartridge for a tower air cleaner in accord with the present invention is low-cost, because it is constructed of injected molded plastics material and stamped and extruded metal components. It is easy to clean, not only because it's constitutive metal parts and plastic components are machine washable but also because the cartridge as a whole is machine washable, the pieces and components are designed and arranged to prevent intracartridge fluid buildup or retention after washing, thereby eliminating any electrical shorting or arcing or other undesirable phenomena resulting therefrom that could interfere with the operation of the electrostatic filter cartridge.
    Type: Grant
    Filed: June 20, 2007
    Date of Patent: November 24, 2009
    Assignee: Head waters R&D, Inc.
    Inventors: Ross L. Cowie, Rudy A. Vandenbelt
  • Publication number: 20090277325
    Abstract: An emission treatment system includes a separation device having a vessel that includes an inlet for receiving an emission stream having entrained solid particles. A first outlet from the vessel discharges captured solid particles from the emission stream and a second outlet from the vessel discharges a clean stream having fewer entrained solid particles than the emission stream received into the separation device. A particle collector is fluidly connected with the separation device and includes a collection portion for capturing solid particles from the emission stream.
    Type: Application
    Filed: May 7, 2008
    Publication date: November 12, 2009
    Inventors: Eric J. Gottung, Bruce H. Easom, Sergei F. Burlatsky, Leo A. Smolensky, Luca Bertuccioli
  • Patent number: 7594954
    Abstract: A method for air purification from dust includes electrically charging dust by air ionization; and collecting the charged dust by an electric field force, performed in a common airflow while changing the direction of the airflow at least once by an angle of more than 135°.
    Type: Grant
    Filed: August 16, 2007
    Date of Patent: September 29, 2009
    Inventor: Yefim Riskin
  • Patent number: 7585352
    Abstract: A method and apparatus electrically charges particulates that need to be removed from a moving air stream. Various methods of corona charging of particulates are used in the fields of electrostatic precipitation of dust, printers and copying machines. This invention is preferably specifically aimed at improving the separation and collection of particulates from dust, mist or vapor generating devices. In another embodiment, a grid electrostatic precipitator, in combination with a corona pre-charger, is used to remove diesel exhaust.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: September 8, 2009
    Inventor: John P. Dunn
  • Patent number: 7559976
    Abstract: A multi-stage collector for multi-pollutant control that contains alternating narrow and wide sections with glow discharge electrodes in some narrow sections, a uniform electric field in wide sections for collecting particles charged by the glow discharge and streamer discharge electrodes in wide or narrow sections that convert and destroy harmful gaseous pollutants such as SO2, NOx and volatile organic compounds as well as convert heavy metals such as mercury into a particulate form. Steady state streamer discharge is supported by non-pulsed power supply. The streaming discharge can convert the polluting gases into nitric and sulfuric acid which can be removed by combining it with ammonia to form solid salts.
    Type: Grant
    Filed: October 23, 2007
    Date of Patent: July 14, 2009
    Inventors: Henry Krigmont, Yuri Akishev
  • Patent number: 7553354
    Abstract: An apparatus (10) and method for recovering elemental carbon, elemental sulfur, elemental iron, elemental gold and other elemental materials from an air flow including a funnel-shaped receptor (14) and an inverted cone-shape electrode node body (12) spaced from the funnel receptor, a funnel-shaped reaction zone (45) between the outer surface of the electrode node body and the inner surface (60) of the receptor for receiving the air flow, and a plurality of point source electrodes (36) mounted to the electrode node body (12) and projecting into the reaction zone (45). The electrode node body (12) and the receptor (14) are electrically isolated from each other, the receptor (14) is connected to ground, and a voltage source is electrically connected to the electrode node body (12).
    Type: Grant
    Filed: November 12, 2004
    Date of Patent: June 30, 2009
    Assignee: Absalut Ecology Establishment
    Inventor: Alexander Vasilievich Borisenko
  • Patent number: 7537647
    Abstract: The present invention is an air purifier including an ionizing assembly that operates to charge particulate material in an air flow passing through the purifier. The charged particulate material is attracted to and retained by a filter element disposed downstream of the ionization assembly and having an electrical charge opposite to the charged particulate material. The purified air passing through the filter is directed out of the device, optionally in conjunction with a fragrance that is added to the purified air flow. The ionizing assembly is formed with a ground member disposed adjacent the ionizing member to keep the electrons generated by the ionizing assembly within the purifier, and thus prevent static discharges from occurring outside of the purifier. The air flow is directed by a fan through the purifier in an angular and substantially laminar manner, such that the efficiency of the purifier is increased.
    Type: Grant
    Filed: May 30, 2006
    Date of Patent: May 26, 2009
    Assignee: S.C. Johnson & Son, Inc.
    Inventors: Joel E. Adair, Rene Maurice Beland, James R. Crapser, C. Scott Eagleton, Thomas P. Gasper, Dennis W. Gruber, Jeffrey L. Harwig, Padma Prabodh Varanasi
  • Publication number: 20080250926
    Abstract: A method for air purification from dust comprising electrically charging dust by means of air ionization; and collecting the charged dust by means of an electric field force, performed in a common airflow while changing the direction of the airflow at least once by an angle of more than 135°.
    Type: Application
    Filed: August 16, 2007
    Publication date: October 16, 2008
    Inventor: Yefim Riskin
  • Patent number: 7435288
    Abstract: The present invention relates to a system for effectively filtering particulate matter from exhaust gas. Exemplary embodiments of the invention provides a system for capturing diesel-powered vehicle particulate matter in exhaust gas, the system including: a detour channel at the interior of the entrance to the diesel particulate filter, an electrode located in front of the detour channel and operable to ionize the particulate matter, and a control unit operable to control operation of the electrode.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: October 14, 2008
    Assignee: Hyundai Motor Company
    Inventor: Kangsoo Lee
  • Patent number: 7393385
    Abstract: An apparatus useful for electrostatic deposition (ESD) of aerosol particles and methods of depositing the aerosol particles onto a substrate are disclosed. The ESD apparatus and the method of the present invention are useful for electrostatically depositing nanoparticles produced by gas-phase synthesis onto a substrate where the velocity of the flow of aerosol can be controlled.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: July 1, 2008
    Assignee: Corning Incorporated
    Inventors: Calvin Thomas Coffey, Curtis Robert Fekety, Andrey V Filippov, Clinton Damon Osterhout, Martin Andrew Sala, Carlton Maurice Truesdale
  • Patent number: 7381245
    Abstract: An arrangement for treating room air has a first air quality sensor in an external air conduit of an air conditioning device. An ionization apparatus, an ozone sensor, an air humidity sensor, an airflow sensor, and at least one air temperature adjusting device are arranged in the supply conduit between air conditioning device and room. Chamber or hood devices forming a component of the room are coupled to the supply conduit. A side of the chamber or hood devices has openings ensuring convection of the supply air into the room. A recirculating air conduit branches off an exhaust conduit to the air-conditioning device. A second air quality sensor is arranged in the recirculating air conduit. A control device is connected to first air quality sensor, ozone sensor, air humidity sensor, airflow sensor, second air quality sensor, and the air temperature adjusting device.
    Type: Grant
    Filed: December 9, 2004
    Date of Patent: June 3, 2008
    Assignee: LK Luftqualität AG
    Inventor: Werner Fleischer
  • Patent number: 7381246
    Abstract: An oil separator for pressurized systems having flowing vapor with entrained oil particles, the separator including an electrically conducting enclosure having an inlet for the oil bearing vapor and a first outlet for the vapor and a second outlet for the separated oil, an electrically conductive screen positioned within the enclosure to receive the entire flow from said vapor inlet, said screen being electrically insulated from the inlet and enclosure, and a high voltage mono-polarity source connected between the screen and the enclosure. A needle-like electrode at the same potential as the enclosure is positioned at the vapor inlet to accentuate the electric field, thereby improving separation.
    Type: Grant
    Filed: August 25, 2005
    Date of Patent: June 3, 2008
    Assignee: Advanced Thermal Environmental Concepts Ltd.
    Inventors: Yuan Zhao, John Lawler, Michael Ohadi
  • Patent number: 7368004
    Abstract: The electric dust collector has an oblong holding unit provided on the air channel of an air conditioner or the like; a high-voltage applying device provided at an end of the holding unit; a front-open contact protector of substantially inverted U-shape that contains a high-voltage power feeding terminal connected to the high-voltage applying device; a filter unit attached to the holding unit; and a slide projection provided on the filter unit. The slide projection has a high-voltage power receiving terminal removably fitted into the contact protector, allowing the filter unit to be removably attached to the holding unit. The high-voltage power feeding terminal covered with the contact protector is free from dust collection. The structure can prevent contact failure or electrical leak.
    Type: Grant
    Filed: July 2, 2004
    Date of Patent: May 6, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tetsuyoshi Yamada, Toru Kai, Hiromu Iwahashi, Naoyoshi Kurosaki
  • Patent number: 7361207
    Abstract: A system useful for electrostatic deposition (ESD) of aerosol particles and methods of depositing the aerosol particles onto a substrate are disclosed. The ESD system and the method of the present invention are useful for electrostatically depositing nanoparticles produced by gas-phase synthesis, using an induction particle generator, onto a substrate. Direct current may be used with minimized corona leakage in the system, which would otherwise be damaging to the induction particle generator.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: April 22, 2008
    Assignee: Corning Incorporated
    Inventors: Calvin Thomas Coffey, Andrey V Filippov, Clinton Damon Osterhout, Martin Andrew Sala, Carlton Maurice Truesdale
  • Patent number: 7354474
    Abstract: The invention related to dust filters (1) which are especially used in operations endangered by gases and comprise filter elements (10) rendered antistatic by means of derivative constituents such as carbon fibres, salts or special steel fibres (26, 27). The filter material (10) is connected to the housing frame (14) by use of conductors (16), bypassing the seal (15), in such a way that a negative electrical charge of the inner chamber of the individual filter element (10) or the dust filter (1) is avoided.
    Type: Grant
    Filed: December 24, 2003
    Date of Patent: April 8, 2008
    Assignee: CFT GmbH Compact Filter Technic
    Inventor: Reinhold Both
  • Publication number: 20080072756
    Abstract: The present invention relates to a system for effectively filtering particulate matter from exhaust gas. Exemplary embodiments of the invention provides a system for capturing diesel-powered vehicle particulate matter in exhaust gas, the system including: a detour channel at the interior of the entrance to the diesel particulate filter, an electrode located in front of the detour channel and operable to ionize the particulate matter, and a control unit operable to control operation of the electrode.
    Type: Application
    Filed: December 29, 2006
    Publication date: March 27, 2008
    Inventor: Kangsoo Lee
  • Publication number: 20080025883
    Abstract: The present invention is related to an ozone generator with advantages of high generating efficiency, small size, and good capabilities of heat dissipation and oxidization prevention. The ozone generator comprises a cooling plate, a high-voltage disposed opposite to the cooling plate, and a channel structure arranged between the cooling plate and the high-voltage plate. The channel structure comprises a first plate having an inner surface and an outer surface attached to the cooling plate, a second plate having an inner surface opposite to the inner surface of the first plate and an outer surface attached to the high-voltage plate, a plurality of lateral plates connecting the first plate to the second plate to define a space between the first plate and the second plate, a first opening formed on one of the lateral plates for directing the air into the space, and a second opening formed on one of the lateral plates for directing the air to flow out of the space.
    Type: Application
    Filed: July 28, 2006
    Publication date: January 31, 2008
    Inventor: Huei-Tarng Liou
  • Patent number: 7318858
    Abstract: A system for separating oxygen from air operates at a pressure less than atmospheric. The oxygen separation system includes an entry port for ambient air, and at least two separate exhaust ports through which separate exhaust streams are drawn by separate suction sources. The oxygen separation system further includes a low-energy ionization portion that favors creation of molecular oxygen ions, and a higher-energy portion disposed between the ionization portion and one of the exhaust ports. A plurality of gas-permeable electrodes are charged to different voltages to provide the different portions inside the separator. An exhaust stream taken from the anode side of the separator is enriched in oxygen relative to ambient air.
    Type: Grant
    Filed: December 28, 2004
    Date of Patent: January 15, 2008
    Assignee: Parsa Investment, L.P.
    Inventor: Komad Parsa